{"id":19113,"date":"2026-04-17T08:35:43","date_gmt":"2026-04-17T06:35:43","guid":{"rendered":"https:\/\/webhosting.de\/http-cache-control-strategien-hosting-cachemaster\/"},"modified":"2026-04-17T08:35:43","modified_gmt":"2026-04-17T06:35:43","slug":"%e3%82%ad%e3%83%a3%e3%83%83%e3%82%b7%e3%83%a5%e3%83%9e%e3%82%b9%e3%82%bf%e3%83%bc%e3%82%92%e3%83%9b%e3%82%b9%e3%83%86%e3%82%a3%e3%83%b3%e3%82%b0http%e3%82%ad%e3%83%a3%e3%83%83%e3%82%b7%e3%83%a5","status":"publish","type":"post","link":"https:\/\/webhosting.de\/ja\/http-cache-control-strategien-hosting-cachemaster\/","title":{"rendered":"\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306b\u304a\u3051\u308bHTTP\u30ad\u30e3\u30c3\u30b7\u30e5\u5236\u5fa1\u6226\u7565\uff1a\u30a6\u30a7\u30d6\u6700\u9069\u5316\u3092\u6975\u3081\u308b"},"content":{"rendered":"<p>\u79c1\u306f\u30ad\u30e3\u30c3\u30b7\u30e5\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u3092\u4f7f\u7528\u3057\u3066\u3001\u30d6\u30e9\u30a6\u30b6\u3001\u30d7\u30ed\u30ad\u30b7\u3001CDN\u304c\u3069\u306e\u3088\u3046\u306b\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b\u304b\u3092\u7279\u5225\u306b\u5236\u5fa1\u3057\u3001\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u3092\u901f\u304f\u3057\u3001\u306a\u304a\u304b\u3064\u6700\u65b0\u306e\u72b6\u614b\u3092\u7dad\u6301\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002\u305d\u306e\u305f\u3081\u306b\u3001\u79c1\u306f\u30bf\u30fc\u30b2\u30c3\u30c8\u3092\u7d5e\u3063\u305f <strong>\u6307\u4ee4<\/strong> max-age\u3001no-cache\u3001no-store\u306a\u3069\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001HTML\u3001\u30a2\u30bb\u30c3\u30c8\u3001API\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3001\u9bae\u5ea6\u3001\u30b5\u30fc\u30d0\u30fc\u8ca0\u8377\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u3068\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n\n<h2>\u4e2d\u5fc3\u70b9<\/h2>\n\n<p>\u4ee5\u4e0b\u306e\u6982\u8981\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u6700\u3082\u91cd\u8981\u306a\u30ec\u30d0\u30fc\u3092\u793a\u3057\u3066\u3044\u308b\u3002 <strong>\u30a6\u30a7\u30d6\u6700\u9069\u5316<\/strong> \u30ad\u30e3\u30c3\u30b7\u30e5\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u4ed8\u304d.<\/p>\n<ul>\n  <li><strong>TTL\u8a2d\u8a08<\/strong>\u30a2\u30bb\u30c3\u30c8\u306b\u306f\u9577\u3044\u6700\u5927\u5e74\u9f62\u3001HTML\u306b\u306f\u77ed\u3044\u6642\u9593\u307e\u305f\u306f\u518d\u691c\u8a3c\u3002.<\/li>\n  <li><strong>\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3<\/strong>ETag\u3068Last-Modified\u306f304\u30ec\u30b9\u30dd\u30f3\u30b9\u3067\u30c7\u30fc\u30bf\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u524a\u6e1b\u3059\u308b\u3002.<\/li>\n  <li><strong>\u30a8\u30c3\u30b8\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb<\/strong>CDN\u306b\u3064\u3044\u3066\u306f\u3001s-maxage\u3001stale-while-revalidate\u3001stale-if-error\u304c\u3042\u308b\u3002.<\/li>\n  <li><strong>\u30d0\u30fc\u30b8\u30e7\u30cb\u30f3\u30b0<\/strong>\u30cf\u30c3\u30b7\u30e5\/\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u542b\u3080\u30d5\u30a1\u30a4\u30eb\u540d\u306f\u3001\u30a2\u30b0\u30ec\u30c3\u30b7\u30d6\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u53ef\u80fd\u306b\u3059\u308b\u3002.<\/li>\n  <li><strong>\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/strong>\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30d2\u30c3\u30c8\u7387\u3001304\u30af\u30a9\u30fc\u30bf\u3001TTFB\u3092\u7d99\u7d9a\u7684\u306b\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3002.<\/li>\n<\/ul>\n\n<h2>\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306b\u304a\u3051\u308b\u30ad\u30e3\u30c3\u30b7\u30e5\u30fb\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u306f\u306a\u305c\u52b9\u679c\u7684\u306a\u306e\u304b\uff1f<\/h2>\n\n<p>Origin\u30b5\u30fc\u30d0\u30fc\u304b\u3089 <strong>\u30ad\u30e3\u30c3\u30b7\u30e5<\/strong>, \u9045\u5ef6\u3092\u6e1b\u3089\u3057\u3001\u5e2f\u57df\u5e45\u3092\u7bc0\u7d04\u3059\u308b\u3002\u9069\u5207\u306b\u8a2d\u5b9a\u3055\u308c\u305f\u30ad\u30e3\u30c3\u30b7\u30e5\u30fb\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30fb\u30d8\u30c3\u30c0\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u6709\u52b9\u671f\u9593\u3068\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u30b5\u30fc\u30d0\u30fc\u306b\u8981\u6c42\u3059\u308b\u30bf\u30a4\u30df\u30f3\u30b0\u3092\u5236\u5fa1\u3057\u307e\u3059\u3002\u79c1\u306f\u3001\u753b\u50cf\u3001CSS\u3001JS\u306a\u3069\u306e\u30a2\u30bb\u30c3\u30c8\u306e\u6709\u52b9\u671f\u9593\u3092\u9577\u304f\u8a2d\u5b9a\u3059\u308b\u4e00\u65b9\u3001HTML\u306e\u6709\u52b9\u671f\u9593\u306f\u77ed\u3044\u304b\u3001\u5e38\u306b\u691c\u8a3c\u3055\u308c\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u305f\u30ec\u30b9\u30dd\u30f3\u30b9\u306b\u906d\u9047\u3059\u308b\u983b\u5ea6\u304c\u9ad8\u304f\u306a\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002 <strong>\u73fe\u5728\u306e<\/strong> \u30b3\u30f3\u30c6\u30f3\u30c4\u3002\u79c1\u306f\u3001\u77db\u76fe\u3057\u305f\u30d8\u30c3\u30c0\u30fc\u3084\u6b20\u843d\u3057\u305f\u30d0\u30fc\u30b8\u30e7\u30cb\u30f3\u30b0\u306e\u3088\u3046\u306a\u5178\u578b\u7684\u306a\u3064\u307e\u305a\u304d\u306e\u30d6\u30ed\u30c3\u30af\u3092\u65e9\u3044\u6bb5\u968e\u3067\u56de\u907f\u3057\u3066\u3044\u308b\u3002 <a href=\"https:\/\/webhosting.de\/ja\/http%e3%82%ad%e3%83%a3%e3%83%83%e3%82%b7%e3%83%a5%e3%83%98%e3%83%83%e3%83%80%e3%83%bc%e3%81%8c%e3%82%ad%e3%83%a3%e3%83%83%e3%82%b7%e3%83%a5%e3%82%92%e5%a6%a8%e5%ae%b3%e3%81%99%e3%82%8b-cachefix\/\">\u30ad\u30e3\u30c3\u30b7\u30e5\u4fee\u6b63\u30ac\u30a4\u30c9<\/a>.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/04\/http-cache-strategien-server-4736.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u57fa\u672c: \u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u3092\u6b63\u3057\u304f\u7d44\u307f\u5408\u308f\u305b\u308b<\/h2>\n\n<p>\u3068\u4e00\u7dd2\u306b <strong>\u6700\u9ad8\u5e74\u9f62<\/strong> no-cache\u306f\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u4f7f\u7528\u524d\u306e\u691c\u8a3c\u3092\u5f37\u5236\u3059\u308b\u304c\u3001\u4fdd\u5b58\u306f\u7981\u6b62\u3057\u306a\u3044\u3002no-store\u306f\u4fdd\u5b58\u3092\u4e00\u5207\u6392\u9664\u3057\u3001\u652f\u6255\u3044\u30c7\u30fc\u30bf\u306a\u3069\u306e\u6a5f\u5bc6\u6027\u306e\u9ad8\u3044\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u4fdd\u8b77\u3059\u308b\u3002public\u306fCDN\u306a\u3069\u306e\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u3067\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u8a31\u53ef\u3057\u3001private\u306f\u30d6\u30e9\u30a6\u30b6\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u9650\u5b9a\u3059\u308b\u3002 <strong>\u30d0\u30fc\u30b8\u30e7\u30cb\u30f3\u30b0<\/strong> (\u4f8b\uff1aapp.v1.2.js)\u306f\u7d20\u6674\u3089\u3057\u3044\u8ffd\u52a0\u6a5f\u80fd\u3060\u3002.<\/p>\n\n<h2>Vary\u30d8\u30c3\u30c0\u30fc\u3068\u30ad\u30e3\u30c3\u30b7\u30e5\u30ad\u30fc\u306e\u660e\u78ba\u306a\u5b9a\u7fa9<\/h2>\n<p>\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u30ea\u30af\u30a8\u30b9\u30c8\u30bf\u30a4\u30d7\u3068\u4e00\u81f4\u3059\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002\u305d\u306e <strong>\u53ef\u5909<\/strong>-\u30d8\u30c3\u30c0\u306f\u3001\u305d\u308c\u3086\u3048\u3001\u3059\u3079\u3066\u306e\u672c\u683c\u7684\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u6226\u7565\u306b\u542b\u307e\u308c\u308b\u3002\u3053\u308c\u306f\u30ad\u30e3\u30c3\u30b7\u30e5\u30fb\u30ad\u30fc\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u3001\u8aa4\u3063\u305f\u518d\u5229\u7528\u3092\u9632\u3050\uff1a<\/p>\n<ul>\n  <li><strong>Accept-Encoding<\/strong>\u5727\u7e2e\u3055\u308c\u305f\u3082\u306e\u3068\u5727\u7e2e\u3055\u308c\u3066\u3044\u306a\u3044\u3082\u306e\u304c\u5225\u3005\u306b\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u308b\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u3002.<\/li>\n  <li><strong>Accept-Language<\/strong>\u305d\u3046\u3067\u306a\u3051\u308c\u3070\u3001\u65ad\u7247\u5316\u306e\u5371\u967a\u6027\u304c\u3042\u308b\u3002.<\/li>\n  <li><strong>\u30af\u30c3\u30ad\u30fc<\/strong>\u30b0\u30ed\u30fc\u30d0\u30eb\u3092\u907f\u3051\u308b <em>\u5909\u6570: \u30af\u30c3\u30ad\u30fc<\/em>, \u305d\u308c\u306f\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30d2\u30c3\u30c8\u7387\u3092\u7834\u58ca\u3059\u308b\u304b\u3089\u3067\u3059\u3002\u305d\u306e\u4ee3\u308f\u308a\u306b\u3001\u95a2\u9023\u3059\u308b\u30af\u30c3\u30ad\u30fc\uff08\u4f8b\u3048\u3070A\/B\u30d0\u30ea\u30a2\u30f3\u30c8\uff09\u306b\u5f93\u3063\u3066\u7279\u5225\u306b\u30bb\u30b0\u30e1\u30f3\u30c8\u5316\u3059\u308b\u304b\u3001\u30a8\u30c3\u30b8\u3067\u7121\u95a2\u4fc2\u306a\u30af\u30c3\u30ad\u30fc\u3092\u524a\u9664\u3057\u307e\u3059\u3002.<\/li>\n  <li><strong>\u8a8d\u8a3c<\/strong>\u8a8d\u8a3c\u30d8\u30c3\u30c0\u30fc\u306b\u4f9d\u5b58\u3059\u308b\u30b3\u30f3\u30c6\u30f3\u30c4\u306f\u5171\u6709\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u4fdd\u5b58\u3057\u306a\u3044\u304b\u3001CDN\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u304c\u3053\u308c\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u610f\u56f3\u7684\u306b\u30ad\u30fc\u306b\u3057\u3066\u3044\u308b\u3002.<\/li>\n<\/ul>\n<pre><code># Apache: HTML \u3068\u30a2\u30bb\u30c3\u30c8\u306e\u305f\u3081\u306e\u610f\u5473\u306e\u3042\u308b Vary \u30d8\u30c3\u30c0\n\n  \u30d8\u30c3\u30c0\u30de\u30fc\u30b8 Vary \"Accept-Encoding\"\n\n\n  \u30d8\u30c3\u30c0\u30de\u30fc\u30b8 Vary \"Accept-Encoding\"\n&lt;\/\u30d5\u30a1\u30a4\u30eb\u30de\u30c3\u30c1\n<\/code><\/pre>\n<p>\u307e\u305f\u3001CDN\u306e\u30af\u30ea\u30a2\u30fb\u30ad\u30e3\u30c3\u30b7\u30e5\u30fb\u30ad\u30fc\u306e\u30eb\u30fc\u30eb\u3082\u5b9a\u7fa9\u3057\u3066\u3044\u308b\uff1a\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0\u306b\u306e\u307f\u4f7f\u7528\u3055\u308c\u308b\u30af\u30a8\u30ea\u30fc\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\uff08\u4f8b\uff1autm_*\uff09\u306f\u30ad\u30fc\u306b\u542b\u3081\u306a\u3044\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u65b0\u9bae\u3055\u3092\u640d\u306a\u3046\u3053\u3068\u306a\u304f\u3001\u30ad\u30fc\u306e\u7206\u767a\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u308b\u3002.<\/p>\n\n<h2>\u5b9f\u8df5\uff1aApache\u3068Nginx\u306e\u8a2d\u5b9a<\/h2>\n\n<p>Apache\u3067\u306f <strong>htaccess<\/strong> \u307e\u305f\u306f\u30d0\u30fc\u30c1\u30e3\u30eb\u30fb\u30d0\u30fc\u30c1\u30e3\u30eb\u30fb\u30d0\u30fc\u30c1\u30e3\u30eb\u30fb\u30d0\u30fc\u30c1\u30e3\u30eb\u30fb\u30d0\u30fc\u30c1\u30e3\u30eb\u30fb\u30d0\u30fc\u30c1\u30e3\u30eb\u30fb\u30d0\u30fc\u30c1\u30e3\u30eb\u30fb\u30d0\u30fc\u30c1\u30e3\u30eb\u30fb\u30d0\u30fc\u30c1\u30e3\u30eb\u30fb\u30d0\u30fc\u30c1\u30e3\u30eb\u30fb\u30d0\u30fc\u30c1\u30e3\u30eb\u30fb\u30d0\u30fc\u30c1\u30e3\u30eb\u30fb\u30d0\u30fc\u30c1\u30e3\u30ebHTML\u3092\u30a2\u30bb\u30c3\u30c8\u304b\u3089\u5206\u96e2\u3057\u3001\u9759\u7684\u30d5\u30a1\u30a4\u30eb\u306b\u9577\u3044\u5bff\u547d\u3092\u4e0e\u3048\u3001\u518d\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3067HTML\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002Expires\u30d8\u30c3\u30c0\u3068\u306e\u885d\u7a81\u3092\u907f\u3051\u3001\u30e2\u30c0\u30f3\u30d6\u30e9\u30a6\u30b6\u306f\u4e3b\u306b\u30ad\u30e3\u30c3\u30b7\u30e5\u5236\u5fa1\u3092\u5c0a\u91cd\u3057\u307e\u3059\u3002Nginx\u3067\u306f\u3001\u6b63\u3057\u3044add_header\u306e\u4f4d\u7f6e\u3092\u5f37\u5236\u3057\u3001\u4e0b\u6d41\u306e\u547d\u4ee4\u304c\u305d\u308c\u3089\u3092\u4e0a\u66f8\u304d\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306b\u3057\u3066 <strong>\u30d6\u30e9\u30a6\u30b6\u30fb\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0<\/strong> \u30b9\u30bf\u30c3\u30af\u5168\u4f53\u3067\u4e00\u8cab\u3057\u3066\u3044\u308b\u3002.<\/p>\n\n<pre><code>.\n  \u30d8\u30c3\u30c0\u30fc\u30bb\u30c3\u30c8 Cache-Control \"public, max-age=31536000, immutable\"\n&lt;\/\u30d5\u30a1\u30a4\u30eb\u30de\u30c3\u30c1\n\n  \u30d8\u30c3\u30c0\u30fc\u30bb\u30c3\u30c8 Cache-Control \"no-cache, must-revalidate\"\n&lt;\/\u30d5\u30a1\u30a4\u30eb\u30de\u30c3\u30c1\n<\/code><\/pre>\n\n<pre><code>location ~* \\.(css|js|png|jpg|svg|woff2)$ {.\n  add_header Cache-Control \"public, max-age=31536000, immutable\"\uff1b\n}\nlocation ~* \\.(html)$ { {.\n  add_header Cache-Control \"no-cache, must-revalidate\"\uff1b\n}\n<\/code><\/pre>\n\n<h3>HTML\u306eCDN\u5c02\u7528\u30ad\u30e3\u30c3\u30b7\u30e5<\/h3>\n<p>\u30d6\u30e9\u30a6\u30b6\u306f\u5e38\u306b\u30c1\u30a7\u30c3\u30af\u3059\u3079\u304d\u3060\u304c\u3001\u30a8\u30c3\u30b8\u304c\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u8a31\u53ef\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068CDN\u3067\u7570\u306a\u308b\u30e9\u30a4\u30d5\u30bf\u30a4\u30e0\u3092\u8a2d\u5b9a\u3059\u308b\uff1a<\/p>\n<pre><code># Apache: \u30d6\u30e9\u30a6\u30b6\u304c\u518d\u691c\u8a3c\u3055\u308c\u3001Edge\u304c5\u5206\u9593\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u305f\u3002\n.\n  \u30d8\u30c3\u30c0\u30fc\u30bb\u30c3\u30c8 Cache-Control \"public, max-age=0, s-maxage=300, must-revalidate, stale-while-revalidate=30, stale-if-error=86400\"\n  \u30d8\u30c3\u30c0\u30de\u30fc\u30b8 Vary \"Accept-Encoding\"\n\n\n# Nginx\nlocation ~*.(html)$ {.\n  add_header Cache-Control \"public, max-age=0, s-maxage=300, must-revalidate, stale-while-revalidate=30, stale-if-error=86400\"\uff1b\n  add_header Vary \"Accept-Encoding\"\uff1b\n}\n<\/code><\/pre>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/04\/cache_control_meeting_4827.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u691c\u8a3c\uff1aETag\u3068Last-Modified\u3092\u52b9\u679c\u7684\u306b\u4f7f\u7528\u3059\u308b<\/h2>\n\n<p>\u30b3\u30f3\u30d0\u30a4\u30f3 <strong>\u30ad\u30e3\u30c3\u30b7\u30e5\u30fb\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb<\/strong> \u3092ETag\u3068Last-Modified\u3092\u4f7f\u3063\u3066\u5236\u5fa1\u3055\u308c\u305f\u65b9\u6cd5\u3067\u518d\u691c\u8a3c\u3057\u307e\u3059\u3002\u6709\u52b9\u671f\u9650\u304c\u5207\u308c\u305f\u5f8c\u3001\u30d6\u30e9\u30a6\u30b6\u306fIf-None-Match\u307e\u305f\u306fIf-Modified-Since\u3092\u9001\u4fe1\u3057\u3001\u30ea\u30bd\u30fc\u30b9\u304c\u5909\u66f4\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u3001\u30b5\u30fc\u30d0\u30fc\u306f304\u3067\u5fdc\u7b54\u3057\u307e\u3059\u3002 \u3053\u308c\u306f\u30d0\u30a4\u30c8\u3092\u7bc0\u7d04\u3057\u3001Origin\u306eCPU\u6642\u9593\u3092\u5927\u5e45\u306b\u524a\u6e1b\u3057\u307e\u3059\u3002\u91cd\u8981\uff1aETags\u306f\u4e00\u8cab\u3057\u3066\u3044\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u305d\u3046\u3067\u306a\u3051\u308c\u3070\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u5909\u66f4\u3055\u308c\u3066\u3044\u306a\u3044\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001\u4e0d\u5fc5\u8981\u306a\u898b\u9003\u3057\u304c\u767a\u751f\u3057\u307e\u3059\u3002\u30af\u30e9\u30b9\u30bf\u4e0a\u3067\u306f\u3001\u5f31\u3044ETags\u3092\u7121\u52b9\u306b\u3057\u305f\u308a\u3001\u5f37\u3044\u30cf\u30c3\u30b7\u30e5\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u3067 <strong>\u518d\u8a8d\u5b9a<\/strong> \u306f\u4fe1\u983c\u3067\u304d\u308b\u3002<\/p>\n\n<h3>\u30de\u30eb\u30c1\u30b5\u30fc\u30d0\u30fc\u74b0\u5883\u306b\u304a\u3051\u308b\u4e00\u8cab\u6027<\/h3>\n<p>ETags\u304c\u30ce\u30fc\u30c9\u9593\u3067\u7570\u306a\u308binode\u30d9\u30fc\u30b9\u306e\u6a5f\u80fd\u306b\u57fa\u3065\u3044\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059\u3002\u5b89\u5b9a\u3057\u305f\u30cf\u30c3\u30b7\u30e5\uff08\u30d3\u30eb\u30c9\u30a2\u30fc\u30c6\u30d5\u30a1\u30af\u30c8\uff09\u3092\u63d0\u4f9b\u3059\u308b\u304b\u3001\u30c7\u30d7\u30ed\u30a4\u304c\u30a2\u30c8\u30df\u30c3\u30af\u306a\u5834\u5408\u306flast-modified\u306b\u4f9d\u5b58\u3059\u308b\u3002\u52d5\u7684\u306a\u30ec\u30b9\u30dd\u30f3\u30b9\u306b\u306f\u3001\u30da\u30a4\u30ed\u30fc\u30c9\u30cf\u30c3\u30b7\u30e5\u3068\u5b8c\u5168\u306b\u4e00\u81f4\u3059\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3ETags\u3092\u4f7f\u7528\u3059\u308b\u3002\u518d\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u304c\u518d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3088\u308a\u3082\u9ad8\u304f\u3064\u304f\u5834\u5408\u306f\u3001\u308f\u3056\u3068200\u3068\u77ed\u3044TTL\u3067\u5fdc\u7b54\u3059\u308b\u3002.<\/p>\n\n<h2>\u8cc7\u6e90\u30bf\u30a4\u30d7\u5225\u6226\u7565<\/h2>\n\n<p>\u306a\u305c\u306a\u3089\u3001HTML\u3001\u30a2\u30bb\u30c3\u30c8\u3001API\u3001\u30bb\u30f3\u30b7\u30c6\u30a3\u30d6\u306a\u30ec\u30b9\u30dd\u30f3\u30b9\u306f\u3001\u305d\u308c\u305e\u308c\u7570\u306a\u308b\u304b\u3089\u3067\u3059\u3002 <strong>\u5fc5\u8981\u6761\u4ef6<\/strong>. .\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u306b\u306f\u9577\u3044TTL\u304c\u6700\u826f\u306e\u5024\u3092\u3082\u305f\u3089\u3059\u304c\u3001HTML\u306f\u53b3\u91cd\u306b\u7ba1\u7406\u3055\u308c\u7d9a\u3051\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002API\u306e\u5bff\u547d\u306f\u77ed\u304f\u8a08\u753b\u3057\u3001\u30d5\u30a9\u30fc\u30eb\u30c8\u30c8\u30ec\u30e9\u30f3\u30b9\u3092\u7d44\u307f\u8fbc\u3080\u3002\u500b\u4eba\u7684\u306a\u56de\u7b54\u3084\u6a5f\u5bc6\u306e\u56de\u7b54\u306f\u4fdd\u5b58\u3057\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u3002\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u6df1\u304f\u5165\u308a\u8fbc\u3080\u4eba\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b3\u30f3\u30d1\u30af\u30c8\u306a\u30d1\u30bf\u30fc\u30f3\u304b\u3089\u5229\u76ca\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002 <a href=\"https:\/\/webhosting.de\/ja\/api%e3%82%ad%e3%83%a3%e3%83%83%e3%82%b7%e3%83%a5-%e3%83%9b%e3%82%b9%e3%83%86%e3%82%a3%e3%83%b3%e3%82%b0%e6%88%a6%e7%95%a5-%e3%83%90%e3%83%83%e3%82%af%e3%82%a8%e3%83%b3%e3%83%89%e3%83%91%e3%83%95\/\">\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306b\u304a\u3051\u308bAPI\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0<\/a>, \u3053\u308c\u306f\u3001\u79c1\u304c\u53cd\u5fdc\u306e\u7279\u5fb4\u306b\u5408\u308f\u305b\u305f\u3082\u306e\u3060\u3002.<\/p>\n\n<table>\n  <thead>\n    <tr>\n      <th>\u30ea\u30bd\u30fc\u30b9\u30bf\u30a4\u30d7<\/th>\n      <th>\u63a8\u5968\u6307\u4ee4<\/th>\n      <th>\u7406\u7531<\/th>\n    <\/tr>\n  <\/thead>\n  <tbody>\n    <tr>\n      <td>\u9759\u7684\u30a2\u30bb\u30c3\u30c8\uff08\u753b\u50cf\u3001CSS\u3001JS\uff09<\/td>\n      <td>public, max-age=31536000, immutable<\/td>\n      <td>\u9577\u3044\u4fdd\u7ba1\u671f\u9593\u3001\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u304c\u3067\u304d\u306a\u3044 <strong>\u30b9\u30c6\u30fc\u30eb<\/strong>-\u30b3\u30f3\u30c6\u30f3\u30c4<\/td>\n    <\/tr>\n    <tr>\n      <td>HTML\u30da\u30fc\u30b8<\/td>\n      <td>no-cache\u3001must-revalidate<\/td>\n      <td>\u65b0\u9bae\u306a\u30b3\u30f3\u30c6\u30f3\u30c4 <strong>\u518d\u8a8d\u5b9a<\/strong><\/td>\n    <\/tr>\n    <tr>\n      <td>API<\/td>\n      <td>public, max-age=300, stale-if-error=86400<\/td>\n      <td>\u671f\u9650\u306f\u77ed\u304f\u3001\u4ee5\u4e0b\u306e\u7528\u9014\u306b\u4f7f\u7528\u53ef\u80fd <strong>\u30a8\u30e9\u30fc<\/strong><\/td>\n    <\/tr>\n    <tr>\n      <td>\u6a5f\u5bc6\u30c7\u30fc\u30bf<\/td>\n      <td>\u30ce\u30fc\u30b9\u30c8\u30a2<\/td>\n      <td>\u304b\u3089\u306e\u4fdd\u7ba1\u306f\u306a\u3044\u3002 <strong>\u30c7\u30fc\u30bf\u4fdd\u8b77<\/strong>-\u7406\u7531<\/td>\n    <\/tr>\n  <\/tbody>\n<\/table>\n\n<h3>\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u3001\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3001\u30a8\u30e9\u30fc\u30da\u30fc\u30b8<\/h3>\n<ul>\n  <li><strong>301<\/strong> \u3053\u308c\u306f\u6c38\u7d9a\u7684\u306a\u3082\u306e\u3067\u3042\u308b\u305f\u3081\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\uff08\u9577\u3044TTL\uff09\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u307e\u305f\u305d\u3046\u3059\u3079\u304d\u3067\u3042\u308b\u3002\u79c1\u306f\u3001\u5f8c\u306e\u5909\u66f4\u3092\u5bb9\u6613\u306b\u3059\u308b\u305f\u3081\u306b\u3001\u30bf\u30fc\u30b2\u30c3\u30c8URL\u3092\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u3059\u308b\u3002.<\/li>\n  <li><strong>302\/307<\/strong> \u306f\u4e00\u6642\u7684\u306a\u3082\u306e\u3067\u3001TTL\u304c\u77ed\u3044\u304b\u518d\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u304c\u5fc5\u8981\u3067\u3001\u305d\u3046\u3067\u306a\u3051\u308c\u3070\u30ad\u30e3\u30c3\u30b7\u30e5\u5185\u306e\u30d1\u30b9\u304c\u4e0d\u6b63\u78ba\u306b\u306a\u308b\u5371\u967a\u6027\u304c\u3042\u308b\u3002.<\/li>\n  <li><strong>404<\/strong> \u79c1\u306f\u77ed\u6642\u9593\uff08\u4f8b\u3048\u307060\uff5e300\u79d2\uff09\u30ad\u30e3\u30c3\u30b7\u30e5\u3057\u3001\u5b9f\u969b\u306e\u30ec\u30af\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u6b20\u9665\u306e\u3042\u308b\u30db\u30c3\u30c8\u30ea\u30f3\u30af\u304cOrigin\u306b\u8ca0\u62c5\u3092\u304b\u3051\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002.<\/li>\n  <li><strong>500+<\/strong> \u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u3057\u306a\u3044\u304c\u3001\u30a8\u30c3\u30b8\u306f\u6b8b\u3059\u3002 <em>\u3082\u3057\u30a8\u30e9\u30fc\u306a\u3089<\/em> \u30e6\u30fc\u30b6\u30fc\u306b\u6700\u65b0\u60c5\u5831\u3092\u63d0\u4f9b\u3059\u308b\u3002.<\/li>\n<\/ul>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/04\/http-cache-control-optimization-3029.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>CDN\u3068Edge\u306e\u305f\u3081\u306e\u62e1\u5f35\u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6<\/h2>\n\n<p>\u3068\u4e00\u7dd2\u306b <strong>S\u30de\u30af\u30b5\u30fc\u30b8\u30e5<\/strong> stale-while-revalidate\u306f\u3001\u30a8\u30c3\u30b8\u304c\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u3067\u66f4\u65b0\u3057\u3066\u3044\u308b\u9593\u3001\u671f\u9650\u5207\u308c\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u914d\u4fe1\u3057\u7d9a\u3051\u308b\u3002stale-if-error\u306f\u3001\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u304c\u505c\u6b62\u3057\u3066\u3044\u308b\u9593\u3082\u30da\u30fc\u30b8\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u7dad\u6301\u3057\u3001\u30b3\u30f3\u30d0\u30fc\u30b8\u30e7\u30f3\u3068\u4fe1\u983c\u3092\u9ad8\u3081\u308b\u3002\u3053\u306e\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u306f\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30d2\u30c3\u30c8\u7387\u306b\u76f4\u63a5\u5f71\u97ff\u3057\u307e\u3059\u3002 <strong>\u30b9\u30b1\u30fc\u30ea\u30f3\u30b0<\/strong> \u7279\u306b\u4ea4\u901a\u306e\u30d4\u30fc\u30af\u6642\u306b\u306f\u3002.<\/p>\n\n<h3>\u30b5\u30ed\u30b2\u30fc\u30c8\u30fb\u30d8\u30c3\u30c0\u30fc\u3068\u30a8\u30c3\u30b8\u30fb\u30d8\u30c3\u30c0\u30fc<\/h3>\n<p>\u30a8\u30c3\u30b8\u30fb\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306e\u3042\u308b\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3067\u306f\u3001\u30b5\u30ed\u30b2\u30fc\u30c8\u30fb\u30d8\u30c3\u30c0\u30fc\uff08\u305f\u3068\u3048\u3070. <em>\u30b5\u30ed\u30b2\u30fc\u30c8\u30fb\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb<\/em>)\u3092\u4f7f\u3063\u3066\u3001\u30d6\u30e9\u30a6\u30b6\u306e\u52d5\u4f5c\u3092\u5909\u3048\u308b\u3053\u3068\u306a\u304f\u3001\u3088\u308aCDN\u56fa\u6709\u306eTTL\u3068\u30b9\u30c6\u30fc\u30eb\u30fb\u30dd\u30ea\u30b7\u30fc\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u3053\u306e\u3088\u3046\u306b\u3057\u3066\u3001\u79c1\u306f\u30a8\u30f3\u30c9\u30e6\u30fc\u30b6\u30fc\u3068\u30a8\u30c3\u30b8\u6226\u7565\u3092\u53b3\u5bc6\u306b\u5206\u96e2\u3057\u3001\u4e21\u65b9\u306e\u30ec\u30d9\u30eb\u306b\u5bfe\u3059\u308b\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3092\u7dad\u6301\u3057\u3066\u3044\u308b\u3002.<\/p>\n\n<h3>\u7121\u52b9\u5316\u3068\u30ea\u30ea\u30fc\u30b9<\/h3>\n<p>\u79c1\u306f\u610f\u8b58\u7684\u306b\u7121\u52b9\u5316\u3092\u8a08\u753b\u3057\u3066\u3044\u308b\u3002\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u3055\u308c\u305f\u30a2\u30bb\u30c3\u30c8\u304c\u30d1\u30fc\u30b8\u3092\u5fc5\u8981\u3068\u3059\u308b\u3053\u3068\u306f\u307b\u3068\u3093\u3069\u306a\u3044\u304c\u3001HTML\u3068API\u30eb\u30fc\u30c8\u306f\u983b\u7e41\u306b\u30d1\u30fc\u30b8\u3092\u5fc5\u8981\u3068\u3059\u308b\u3002\u79c1\u306f\u4ee5\u4e0b\u306e\u30eb\u30fc\u30c1\u30f3\u3092\u660e\u78ba\u306b\u5b9a\u7fa9\u3057\u3066\u3044\u308b\uff1a<\/p>\n<ul>\n  <li><strong>URL\/\u30d1\u30bf\u30fc\u30f3\u306b\u3088\u308b\u30d1\u30fc\u30b8<\/strong> \u30db\u30c3\u30c8\u30d5\u30a3\u30c3\u30af\u30b9\u3068\u30a8\u30e9\u30fc\u306b\u3064\u3044\u3066.<\/li>\n  <li><strong>\u30bf\u30b0\u30d9\u30fc\u30b9\u306e\u30d1\u30fc\u30b8<\/strong> (\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u308b\u5834\u5408) \u3067\u3001\u30c6\u30fc\u30de\u306b\u95a2\u9023\u3057\u305f\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u7121\u52b9\u306b\u3057\u307e\u3059\u3002.<\/li>\n  <li><strong>\u6bb5\u968e\u7684\u30ed\u30fc\u30eb\u30a2\u30a6\u30c8<\/strong>\u6700\u521d\u306b\u30a2\u30bb\u30c3\u30c8\u3092\u30c7\u30d7\u30ed\u30a4\u3057\u3001\u6b21\u306bHTML\u3092\u65b0\u3057\u3044\u53c2\u7167\u3067\u30c7\u30d7\u30ed\u30a4\u3059\u308b\u3002.<\/li>\n<\/ul>\n\n<h2>WordPress\uff1a\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u5b89\u5168\u306b\u5b9f\u88c5\u3059\u308b<\/h2>\n\n<p>WordPress\u3067\u306f\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u307e\u305f\u306f\u72ec\u81ea\u306e\u30b3\u30fc\u30c9\u3067\u30d8\u30c3\u30c0\u30fc\u3092\u6709\u52b9\u5316\u3057\u3001\u6b21\u306e\u3088\u3046\u306b\u89b3\u5bdf\u3057\u307e\u3059\u3002 <strong>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8<\/strong>-\u69cb\u9020\u3002wp-includes\u3068uploads\u306e\u9759\u7684\u30d5\u30a1\u30a4\u30eb\u306f\u9577\u3044TTL\u3068immutable\u3092\u53d6\u5f97\u3057\u3001\u30da\u30fc\u30b8\u306fmust-revalidate\u3067no-cache\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002\u30ed\u30b0\u30a4\u30f3\u3057\u3066\u3044\u308b\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u6ce8\u610f: \u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30af\u30c3\u30ad\u30fc\u3068\u5dee\u5225\u5316\u30af\u30c3\u30ad\u30fc\u306f\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u5185\u306e\u8aa4\u3063\u305f\u30d1\u30fc\u30bd\u30ca\u30e9\u30a4\u30ba\u3092\u9632\u304e\u307e\u3059\u3002\u79c1\u306f\u3001\u660e\u78ba\u306a\u30eb\u30fc\u30eb\u3068\u3053\u308c\u3089\u3092\u898b\u3066\u3001\u5178\u578b\u7684\u306a\u3064\u307e\u305a\u304d\u306e\u30d6\u30ed\u30c3\u30af\u3092\u6392\u9664\u3057\u307e\u3059\u3002 <a href=\"https:\/\/webhosting.de\/ja\/%e3%83%af%e3%83%bc%e3%83%89%e3%83%97%e3%83%ac%e3%82%b9-%e3%83%96%e3%83%a9%e3%82%a6%e3%82%b6-%e3%82%ad%e3%83%a3%e3%83%83%e3%82%b7%e3%83%a5-%e3%82%a8%e3%83%a9%e3%83%bc-%e3%82%b5%e3%83%bc%e3%83%90\/\">WordPress\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u30a8\u30e9\u30fc<\/a>. .\u5fc5\u8981\u3067\u3042\u308c\u3070\u3001\u30b5\u30fc\u30d0\u30fc\u30b5\u30a4\u30c9\u30fb\u30da\u30fc\u30b8\u30fb\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0\u3068OPCache\u3092\u8ffd\u52a0\u3057\u3066\u3001PHP\u306e\u5b9f\u884c\u304c\u76ee\u7acb\u3064\u3088\u3046\u306b\u3059\u308b\u3002 <strong>\u6e1b\u5c11<\/strong>.<\/p>\n\n<pre><code>&lt;?php\n\u95a2\u6570 add_cache_headers() {\n    if (!is_admin()){\n        header(&#039;Cache-Control: public, max-age=31536000, immutable&#039;, true)\uff1b\n    }\n}\nadd_action(&#039;send_headers&#039;, &#039;add_cache_headers&#039;)\uff1b;\n<\/code><\/pre>\n\n<h3>\u30d1\u30fc\u30bd\u30ca\u30e9\u30a4\u30bc\u30fc\u30b7\u30e7\u30f3\u3068\u30af\u30c3\u30ad\u30fc\u306e\u6253\u958b\u7b56<\/h3>\n<p>\u79c1\u306f\u3001Set-Cookie <em>\u306a\u3044<\/em> \u306f\u3059\u3079\u3066\u306e\u30da\u30fc\u30b8\u3067\u4e00\u5f8b\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u4e0d\u8981\u306a\u30af\u30c3\u30ad\u30fc\u306f\u5171\u6709\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u59a8\u3052\u307e\u3059\u3002\u30ed\u30b0\u30a4\u30f3\u30e6\u30fc\u30b6\u30fc\u306b\u306f\u660e\u793a\u7684\u306b\u914d\u4fe1\u3057\u3066\u3044\u307e\u3059\uff1a<\/p>\n<pre><code># \u30ed\u30b0\u30a4\u30f3\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u30d8\u30c3\u30c0\u30fc\u306e\u4f8b\nCache-Control: private, no-store, max-age=0\nVary: Accept-Encoding\n<\/code><\/pre>\n<p>\u4e00\u65b9\u3001\u30d1\u30fc\u30bd\u30ca\u30e9\u30a4\u30ba\u306a\u3057\u306e\u30ea\u30b9\u30c8\u3068\u8a73\u7d30\u30da\u30fc\u30b8\u306f\u3001CDN\u306e\u30d5\u30eb\u30d1\u30ef\u30fc\u3092\u5229\u7528\u3059\u308b\u3002\u30d1\u30fc\u30bd\u30ca\u30e9\u30a4\u30ba\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001\u30a8\u30c3\u30b8\u30d5\u30e9\u30b0\u30e1\u30f3\u30c8\u3084\u5c0f\u3055\u306aAPI\u30da\u30a4\u30ed\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u3001\u6b8b\u308a\u306f\u7a4d\u6975\u7684\u306b\u30ad\u30e3\u30c3\u30b7\u30e5\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/04\/tech_office_cachecontrol_2489.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u3088\u304f\u3042\u308b\u9593\u9055\u3044\u3068\u305d\u306e\u76f4\u3057\u65b9<\/h2>\n\n<p>\u4f4e\u3059\u304e\u308b <strong>TTL<\/strong> \u306f\u4e0d\u5fc5\u8981\u306a\u30b5\u30fc\u30d0\u30fc\u4f5c\u696d\u3068\u9ad8\u3044\u30ec\u30b9\u30dd\u30f3\u30b9\u30bf\u30a4\u30e0\u3092\u751f\u307f\u51fa\u3057\u307e\u3059\u3002\u30d8\u30c3\u30c0\u30fc\u306e\u6b20\u843d\u3084\u77db\u76fe\u306f\u3001\u30d6\u30e9\u30a6\u30b6\u306b\u30d2\u30e5\u30fc\u30ea\u30b9\u30c6\u30a3\u30c3\u30af\u306a\u52d5\u4f5c\u3092\u5f37\u3044\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u72a0\u7272\u306b\u3059\u308b\u3002\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u306a\u3057\u3067\u306f\u3001\u9577\u3044\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001\u8cc7\u7523\u304c\u53e4\u304f\u306a\u308b\u30ea\u30b9\u30af\u304c\u3042\u308b\u3002\u8907\u6570\u306e\u30b5\u30fc\u30d0\u30fc\u3067ETag\u6226\u7565\u304c\u7570\u306a\u308b\u3068\u3001\u30df\u30b9\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002\u4e00\u8cab\u3057\u305f\u30cf\u30c3\u30b7\u30e5\u3092\u4fdd\u8a3c\u3059\u308b\u304b\u3001ETag\u3092\u7121\u52b9\u306b\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u306a\u3069\u306e\u4e2d\u9593\u7d44\u7e54\u304c\u3001\u72ec\u81ea\u306e <strong>\u30d8\u30c3\u30c0\u30fc<\/strong> \u3068\u4e0a\u66f8\u304d\u3059\u308b\u3002.<\/p>\n\n<h3>\u30d2\u30e5\u30fc\u30ea\u30b9\u30c6\u30a3\u30c3\u30af\u30fb\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u907f\u3051\u308b<\/h3>\n<p>Cache-Control\u3082Expires\u3082\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u3001\u30d6\u30e9\u30a6\u30b6\u306f\u63a8\u6e2c\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u79c1\u306f\u5e38\u306b\u660e\u793a\u7684\u306a\u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u3092\u30aa\u30d5\u306b\u3057\u3001\u30ec\u30ac\u30b7\u30fc\u306a\u554f\u984c (\u4f8b\u3048\u3070. <em>Pragma: no-cache<\/em> \u6c7a\u5b9a\u8ad6\u7684\u306a\u632f\u308b\u821e\u3044\u3092\u5f97\u308b\u305f\u3081\u306b\u3001\u53e4\u3044\u30d7\u30ed\u30ad\u30b7\u304b\u3089\uff09\u3002.<\/p>\n\n<h3>\u30af\u30a8\u30ea\u30fc\u6587\u5b57\u5217\u3068\u30ad\u30e3\u30c3\u30b7\u30e5\u7834\u58ca<\/h3>\n<p>\u79c1\u306f\u3001\u30af\u30a8\u30ea\u6587\u5b57\u5217\u306e\u4ee3\u308f\u308a\u306b\u30d5\u30a1\u30a4\u30eb\u540d\u306e\u30cf\u30c3\u30b7\u30e5\uff08style.abc123.css\uff09\u3092\u4f7f\u3063\u3066\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u7834\u68c4\u3057\u3066\u3044\u308b\u3002\u591a\u304f\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u7570\u306a\u308b\u30af\u30a8\u30ea\u3092\u5225\u3005\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u3057\u3066\u6271\u3046\u305f\u3081\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u6570\u304c\u5897\u3048\u307e\u3059\u3002\u4e00\u65b9\u3001\u5909\u66f4\u3055\u308c\u3066\u3044\u306a\u3044\u30d5\u30a1\u30a4\u30eb\u3067\u306f\u3001\u65b0\u3057\u3044\u30cf\u30c3\u30b7\u30e5\u306f\u30af\u30ea\u30fc\u30f3\u306a\u7121\u52b9\u5316\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002.<\/p>\n\n<h2>\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3001\u30c6\u30b9\u30c8\u3001\u30e1\u30c8\u30ea\u30af\u30b9<\/h2>\n\n<p>\u79c1\u306f\u52b9\u679c\u3092\u6e2c\u5b9a\u3057\u3001\u5927\u3005\u7684\u306a\u5909\u66f4\u3092\u884c\u3046\u306e\u3067\u306f\u306a\u304f\u3001\u7684\u3092\u7d5e\u3063\u305f\u4fee\u6b63\u3092\u884c\u3046\u3002 <strong>\u30af\u30ea\u30a2<\/strong>. .curl\u3092\u4f7f\u3063\u3066\u30d8\u30c3\u30c0\u30fc\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3001DevTools\u3092\u4f7f\u3063\u3066\u30d5\u30a1\u30fc\u30b9\u30c8\u30d3\u30e5\u30fc\u3068\u30ea\u30d4\u30fc\u30c8\u30d3\u30e5\u30fc\u3092\u30b7\u30df\u30e5\u30ec\u30fc\u30c8\u3057\u3001Lighthouse\u3092\u4f7f\u3063\u3066\u4e3b\u8981\u306a\u6570\u5024\u3078\u306e\u5f71\u97ff\u3092\u8a55\u4fa1\u3059\u308b\u3002\u30b5\u30fc\u30d0\u30fc\u3068CDN\u5074\u3067\u306f\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30d2\u30c3\u30c8\u7387\u3001304\u30af\u30a9\u30fc\u30bf\u3001\u30d0\u30a4\u30c8\u30bb\u30fc\u30d6\u3001TTFB\u3092\u76e3\u8996\u3057\u3066\u3044\u307e\u3059\u3002\u30ed\u30b0\u304b\u3089\u3001HTML\u304c\u672c\u5f53\u306b\u518d\u691c\u8a3c\u3055\u308c\u3066\u3044\u308b\u304b\u3001\u30a2\u30bb\u30c3\u30c8\u304c\u307b\u3068\u3093\u3069\u518d\u30ea\u30af\u30a8\u30b9\u30c8\u3055\u308c\u306a\u3044\u304b\u3069\u3046\u304b\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u65e9\u3044\u6bb5\u968e\u3067\u30ae\u30e3\u30c3\u30d7\u3092\u8a8d\u8b58\u3057\u3001\u6539\u5584\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 <strong>\u30bf\u30fc\u30b2\u30c3\u30c8<\/strong>.<\/p>\n\n<h3>\u8ffd\u52a0\u306e\u8a3a\u65ad\u4fe1\u53f7<\/h3>\n<ul>\n  <li><strong>\u5e74\u9f62<\/strong>-\u30d8\u30c3\u30c0\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u5165\u3063\u3066\u304b\u3089\u306e\u6642\u9593\u3092\u793a\u3059\u3002.<\/li>\n  <li><strong>\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u72b6\u614b<\/strong> (\u5229\u7528\u53ef\u80fd\u306a\u5834\u5408\uff09HIT\/MISS\/STALE\u3068\u30bd\u30fc\u30b9\uff08BROWSER\u3001CDN\u3001ORIGIN\uff09\u3092\u660e\u3089\u304b\u306b\u3059\u308b\u3002.<\/li>\n  <li><strong>\u30b5\u30fc\u30d0\u30fc\u30bf\u30a4\u30df\u30f3\u30b0<\/strong> \u30c4\u30fc\u30eb\u3067\u30d1\u30b9\u3092\u898b\u3048\u308b\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u306b\u3001\u81ea\u5206\u306e\u30de\u30fc\u30ab\u30fc\uff08\u4f8b\u3048\u3070cache;desc=\u201crevalidated\u201c\uff09\u306b\u4f7f\u3063\u3066\u3044\u308b\u3002.<\/li>\n<\/ul>\n<p>\u79c1\u306fCI\/CD\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u3067\u30c1\u30a7\u30c3\u30af\u3092\u81ea\u52d5\u5316\u3057\u3066\u3044\u308b\uff1a\u5404\u30c7\u30d7\u30ed\u30a4\u30e1\u30f3\u30c8\u306e\u5f8c\u3001\u5c0f\u3055\u306a\u30c6\u30b9\u30c8\u30ab\u30bf\u30ed\u30b0\u304c\u30c8\u30c3\u30d7\u30eb\u30fc\u30c8\u306e\u30d8\u30c3\u30c0\u30fc\u3001\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u3001\u30ec\u30b9\u30dd\u30f3\u30b9\u30b5\u30a4\u30ba\u3092\u691c\u8a3c\u3059\u308b\u3002\u30ea\u30b0\u30ec\u30c3\u30b7\u30e7\u30f3\u306f\u3059\u3050\u306b\u6c17\u3065\u304b\u308c\u307e\u3059\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/04\/http_cache_control_strategien_3477.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>SEO\u3068\u30d3\u30b8\u30cd\u30b9\u52b9\u679c<\/h2>\n\n<p>\u914d\u4fe1\u306e\u9ad8\u901f\u5316\u306f\u3001\u30b3\u30a2\u30a6\u30a7\u30d6\u30fb\u30d0\u30a4\u30bf\u30eb\u3092\u5f37\u5316\u3057\u3001\u30d0\u30a6\u30f3\u30c9\u3092\u6e1b\u3089\u3057\u3001\u914d\u4fe1\u901f\u5ea6\u3092\u5411\u4e0a\u3055\u305b\u308b\u3002 <strong>\u8996\u8a8d\u6027<\/strong>. .\u30e9\u30a6\u30f3\u30c9\u30fb\u30c8\u30ea\u30c3\u30d7\u304c\u56de\u907f\u3055\u308c\u308b\u305f\u3073\u306b\u30b5\u30fc\u30d0\u30fc\u30fb\u30b3\u30b9\u30c8\u304c\u524a\u6e1b\u3055\u308c\u3001\u30d4\u30fc\u30af\u8ca0\u8377\u306e\u30ea\u30b9\u30af\u3082\u6700\u5c0f\u9650\u306b\u6291\u3048\u3089\u308c\u308b\u3002\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u96c6\u4e2d\u3059\u308b\u30b5\u30a4\u30c8\u3067\u306f\u3001\u6bce\u6708\u304b\u306a\u308a\u306e\u30c7\u30fc\u30bf\u91cf\u3092\u7bc0\u7d04\u3057\u3066\u3044\u307e\u3059\u3002\u6599\u91d1\u30d7\u30e9\u30f3\u306b\u3088\u3063\u3066\u306f\u3001\u3053\u308c\u304c3\u6841\u306e\u30e6\u30fc\u30ed\u306b\u306a\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u30ad\u30e3\u30c3\u30b7\u30e5\u30d2\u30c3\u30c8\u7387\u304c\u9ad8\u3051\u308c\u3070\u3001\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u3084\u30bb\u30fc\u30eb\u30b9\u306e\u30ec\u30b9\u30dd\u30f3\u30b9\u30bf\u30a4\u30e0\u3082\u5b89\u5b9a\u3059\u308b\u3002\u4e88\u6e2c\u53ef\u80fd\u306a\u65b9\u6cd5\u3067\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u4eba\u306f\u3001\u901a\u5e38\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u30d2\u30c3\u30c8\u7387\u3082\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002 <strong>\u30b3\u30f3\u30d0\u30fc\u30b8\u30e7\u30f3<\/strong>.<\/p>\n\n<h2>\u5b9f\u8df5\u7684\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8 7\u3064\u306e\u30b9\u30c6\u30c3\u30d7<\/h2>\n\n<p>(1) \u30d5\u30a1\u30a4\u30eb\u3092\u30a4\u30f3\u30d9\u30f3\u30c8\u30ea\u5316\u3057\u3001HTML\u3001\u30a2\u30bb\u30c3\u30c8\u3001API\u3001\u30bb\u30f3\u30b7\u30c6\u30a3\u30d6\u306a\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u5206\u96e2\u3059\u308b\u3002 <strong>\u30bb\u30b0\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3<\/strong> \u30eb\u30fc\u30eb\u304c\u5bb9\u6613\u306b\u306a\u308b\u3002(2) CSS\/JS\/\u753b\u50cf\u306b\u30d0\u30fc\u30b8\u30e7\u30cb\u30f3\u30b0\u3092\u5c0e\u5165\u3057\u3001\u30d5\u30a1\u30a4\u30eb\u540d\u306b\u30cf\u30c3\u30b7\u30e5\u3092\u4f7f\u7528\u3057\u3001immutable\u3092\u8a2d\u5b9a\u3059\u308b\u3002(3) HTML\u306b\u306fno-cache\u3068must-revalidate\u3092\u8a2d\u5b9a\u3059\u308b\u3002(4) API\u306b\u77ed\u3044TTL\u3092\u5b9a\u7fa9\u3057\u3001\u3055\u3089\u306bstale-if-error\u3067\u5931\u6557\u3092\u8efd\u6e1b\u3059\u308b\u3002 <strong>\u6ede\u5728<\/strong>. .(5) ETag\u307e\u305f\u306fLast-Modified\u3092\u4e00\u8cab\u3057\u3066\u6709\u52b9\u306b\u3059\u308b\u3002(6) CDN\u3068Origin\u306e\u30d8\u30c3\u30c0\u30fc\u3092\u540c\u671f\u3055\u305b\u308b\u3002(7) \u30d2\u30c3\u30c8\u7387\u3001TTFB\u3001\u30d0\u30a4\u30c8\u30bb\u30fc\u30d6\u3092\u6e2c\u5b9a\u3059\u308b\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/04\/hosting-serverraum-7632.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u305d\u306e\u4ed6\u306e\u5b9f\u8df5\u7684\u4e8b\u4f8b\u3068\u30b5\u30f3\u30d7\u30eb<\/h2>\n<ul>\n  <li><strong>\u6761\u4ef6\u4ed8\u304d\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u3088\u308bAPI<\/strong>\u77ed\u3044TTL\u3068ETag\u3067\u3001\u5171\u6709\u30ad\u30e3\u30c3\u30b7\u30e5\uff08\u30d1\u30d6\u30ea\u30c3\u30af\uff09\u306bGET\/HEAD\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u660e\u793a\u7684\u306b\u8a31\u53ef\u3057\u3066\u3044\u307e\u3059\u3002POST\u30ec\u30b9\u30dd\u30f3\u30b9\u306f\u3001\u6b63\u78ba\u306b\u5b9a\u7fa9\u3055\u308c\u3001\u5909\u66f4\u3055\u308c\u306a\u3044\u5834\u5408\u306e\u307f\u30ad\u30e3\u30c3\u30b7\u30e5\u3057\u307e\u3059\u3002.<\/li>\n  <li><strong>\u5927\u5bb9\u91cf\u30d5\u30a1\u30a4\u30eb\u3068\u7bc4\u56f2\u30ea\u30af\u30a8\u30b9\u30c8<\/strong>\u30e1\u30c7\u30a3\u30a2\u5411\u3051 <em>\u53d7\u8afe\u7bc4\u56f2\uff1a\u30d0\u30a4\u30c8<\/em> Edge\u306f\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3092\u518d\u958b\u3059\u308b\u969b\u306bOrigin\u3092\u89e3\u653e\u3059\u308b\u3002.<\/li>\n  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